QBO will automatically post the amount in the Accounts Payable account once a bill is created, rfnffsales.
It's possible that the Sales Tax Payable was accidentally added in the Category Details section of the bill. Let's go back to the transaction and click Category details. Then, remove the account that might have been added. One done, click Save and close.
If you can't see the Sales Tax Payable in the bill, please contact our phone support team so they can check how the account mapping is done and make sure your bills are posted under the correct account. Here's how:
Please reach out to us again if you have other questions. The Community is always ready to jump in and offer our help.